/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 00:44:05,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 00:44:05,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 00:44:05,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 00:44:05,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random42.epf [2021-06-17 00:44:05,758 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 00:44:05,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 00:44:05,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 00:44:05,759 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 00:44:05,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 00:44:05,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 00:44:05,761 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 00:44:05,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 00:44:05,761 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 00:44:05,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 00:44:05,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 00:44:05,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 00:44:05,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 00:44:05,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 00:44:05,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 00:44:05,762 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 00:44:05,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 00:44:05,763 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 00:44:05,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 00:44:05,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 00:44:05,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 00:44:05,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 00:44:05,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 00:44:05,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 00:44:05,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 00:44:05,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 00:44:05,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 00:44:05,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 00:44:05,764 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 00:44:05,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 00:44:05,764 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 00:44:05,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 00:44:05,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 00:44:05,765 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-17 00:44:05,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 00:44:05,765 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 00:44:06,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 00:44:06,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 00:44:06,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 00:44:06,046 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 00:44:06,047 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 00:44:06,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl [2021-06-17 00:44:06,048 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/inc-subseq-array.wvr.bpl' [2021-06-17 00:44:06,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 00:44:06,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 00:44:06,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 00:44:06,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 00:44:06,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 00:44:06,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 00:44:06,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 00:44:06,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 00:44:06,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 00:44:06,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... [2021-06-17 00:44:06,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 00:44:06,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 00:44:06,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 00:44:06,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 00:44:06,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 00:44:06,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 00:44:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 00:44:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 00:44:06,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 00:44:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 00:44:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 00:44:06,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 00:44:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 00:44:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 00:44:06,172 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 00:44:06,376 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 00:44:06,376 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 00:44:06,378 INFO L202 PluginConnector]: Adding new model inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 12:44:06 BoogieIcfgContainer [2021-06-17 00:44:06,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 00:44:06,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 00:44:06,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 00:44:06,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 00:44:06,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 12:44:06" (1/2) ... [2021-06-17 00:44:06,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ca7169 and model type inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 12:44:06, skipping insertion in model container [2021-06-17 00:44:06,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "inc-subseq-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 12:44:06" (2/2) ... [2021-06-17 00:44:06,383 INFO L111 eAbstractionObserver]: Analyzing ICFG inc-subseq-array.wvr.bpl [2021-06-17 00:44:06,386 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 00:44:06,386 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 00:44:06,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 00:44:06,387 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 00:44:06,407 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-17 00:44:06,422 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 00:44:06,518 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 00:44:06,518 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 00:44:06,519 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 00:44:06,519 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 00:44:06,519 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 00:44:06,519 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 00:44:06,519 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 00:44:06,519 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 00:44:06,556 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:44:06,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:44:06,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1769880548, now seen corresponding path program 1 times [2021-06-17 00:44:06,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:44:06,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069307245] [2021-06-17 00:44:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:44:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:06,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:44:06,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:44:06,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069307245] [2021-06-17 00:44:06,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069307245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 00:44:06,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 00:44:06,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 00:44:06,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478569299] [2021-06-17 00:44:06,744 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 00:44:06,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:44:06,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 00:44:06,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-17 00:44:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:06,758 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:44:06,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 00:44:06,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:06,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 00:44:06,783 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:44:06,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:44:06,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1050961691, now seen corresponding path program 1 times [2021-06-17 00:44:06,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:44:06,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484811147] [2021-06-17 00:44:06,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:44:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:44:06,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:44:06,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484811147] [2021-06-17 00:44:06,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484811147] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 00:44:06,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 00:44:06,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 00:44:06,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275151738] [2021-06-17 00:44:06,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 00:44:06,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:44:06,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 00:44:06,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 00:44:06,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:06,822 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:44:06,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 00:44:06,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:06,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:06,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:06,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:06,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 00:44:06,913 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:44:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:44:06,914 INFO L82 PathProgramCache]: Analyzing trace with hash -461582748, now seen corresponding path program 1 times [2021-06-17 00:44:06,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:44:06,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840863130] [2021-06-17 00:44:06,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:44:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:07,003 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-17 00:44:07,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:44:07,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840863130] [2021-06-17 00:44:07,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840863130] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:07,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076238293] [2021-06-17 00:44:07,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:07,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-17 00:44:07,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:44:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-17 00:44:07,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076238293] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 00:44:07,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-17 00:44:07,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-06-17 00:44:07,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209749953] [2021-06-17 00:44:07,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 00:44:07,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:44:07,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 00:44:07,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-17 00:44:07,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:07,149 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:44:07,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 00:44:07,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:07,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:07,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:07,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:07,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:07,394 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:44:07,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:44:07,395 INFO L82 PathProgramCache]: Analyzing trace with hash -989336699, now seen corresponding path program 2 times [2021-06-17 00:44:07,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:44:07,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154990385] [2021-06-17 00:44:07,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:44:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:07,464 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-17 00:44:07,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:44:07,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154990385] [2021-06-17 00:44:07,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154990385] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:07,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671024269] [2021-06-17 00:44:07,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:07,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 00:44:07,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:44:07,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-17 00:44:07,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:44:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-17 00:44:07,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671024269] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:07,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:44:07,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 6 [2021-06-17 00:44:07,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31194683] [2021-06-17 00:44:07,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-17 00:44:07,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:44:07,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-17 00:44:07,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-17 00:44:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:07,687 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:44:07,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 00:44:07,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:07,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:07,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:07,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:44:07,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:07,941 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:44:07,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:44:07,941 INFO L82 PathProgramCache]: Analyzing trace with hash -655893298, now seen corresponding path program 3 times [2021-06-17 00:44:07,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:44:07,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877437292] [2021-06-17 00:44:07,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:44:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 00:44:08,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:44:08,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877437292] [2021-06-17 00:44:08,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877437292] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:08,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125070436] [2021-06-17 00:44:08,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:08,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-17 00:44:08,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:44:08,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 34 conjunts are in the unsatisfiable core [2021-06-17 00:44:08,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:44:09,006 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:09,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 50 [2021-06-17 00:44:09,015 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:09,053 INFO L628 ElimStorePlain]: treesize reduction 14, result has 82.5 percent of original size [2021-06-17 00:44:09,064 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 00:44:09,064 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:46, output treesize:47 [2021-06-17 00:44:09,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:09,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:09,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:09,402 INFO L354 Elim1Store]: treesize reduction 18, result has 74.6 percent of original size [2021-06-17 00:44:09,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 42 treesize of output 68 [2021-06-17 00:44:09,449 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:09,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:09,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:09,468 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:09,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 42 [2021-06-17 00:44:09,490 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-06-17 00:44:09,509 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:09,525 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-06-17 00:44:09,525 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:84, output treesize:48 [2021-06-17 00:44:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:44:09,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125070436] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:09,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:44:09,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 35 [2021-06-17 00:44:09,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460673475] [2021-06-17 00:44:09,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-17 00:44:09,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:44:09,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-17 00:44:09,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=1086, Unknown=0, NotChecked=0, Total=1260 [2021-06-17 00:44:09,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:09,620 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:44:09,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0) internal successors, (72), 35 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 00:44:09,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:09,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:09,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:09,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:44:09,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:12,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:12,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:44:12,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-17 00:44:12,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:12,394 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:44:12,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:44:12,394 INFO L82 PathProgramCache]: Analyzing trace with hash 964170564, now seen corresponding path program 4 times [2021-06-17 00:44:12,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:44:12,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498309133] [2021-06-17 00:44:12,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:44:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-17 00:44:12,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:44:12,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498309133] [2021-06-17 00:44:12,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498309133] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:12,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562331905] [2021-06-17 00:44:12,900 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:12,933 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 00:44:12,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:44:12,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-17 00:44:12,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:44:14,063 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:14,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 128 [2021-06-17 00:44:14,081 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:14,197 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2021-06-17 00:44:14,197 INFO L628 ElimStorePlain]: treesize reduction 132, result has 63.3 percent of original size [2021-06-17 00:44:14,230 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 00:44:14,230 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:92, output treesize:87 [2021-06-17 00:44:14,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,741 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 00:44:14,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:14,743 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 00:44:14,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 19 [2021-06-17 00:44:14,746 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:14,751 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:14,753 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 00:44:14,753 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:68, output treesize:5 [2021-06-17 00:44:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 17 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:44:14,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562331905] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:14,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:44:14,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 32] total 52 [2021-06-17 00:44:14,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874455520] [2021-06-17 00:44:14,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-17 00:44:14,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:44:14,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-17 00:44:14,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=2460, Unknown=0, NotChecked=0, Total=2756 [2021-06-17 00:44:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:14,767 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:44:14,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 1.7924528301886793) internal successors, (95), 52 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 00:44:14,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:14,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:14,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:14,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:44:14,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-17 00:44:14,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:44:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-17 00:44:16,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 00:44:17,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:17,043 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:44:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:44:17,044 INFO L82 PathProgramCache]: Analyzing trace with hash -980795767, now seen corresponding path program 5 times [2021-06-17 00:44:17,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:44:17,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252534082] [2021-06-17 00:44:17,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:44:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-17 00:44:17,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:44:17,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252534082] [2021-06-17 00:44:17,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252534082] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:17,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515342458] [2021-06-17 00:44:17,772 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:17,811 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-06-17 00:44:17,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:44:17,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 69 conjunts are in the unsatisfiable core [2021-06-17 00:44:17,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:44:19,385 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:19,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 176 [2021-06-17 00:44:19,416 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:19,651 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 101 [2021-06-17 00:44:19,652 INFO L628 ElimStorePlain]: treesize reduction 182, result has 64.7 percent of original size [2021-06-17 00:44:19,724 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 00:44:19,724 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:106, output treesize:115 [2021-06-17 00:44:20,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,678 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 00:44:20,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 00:44:20,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:20,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 22 [2021-06-17 00:44:20,689 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:20,696 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:20,698 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 00:44:20,698 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:73, output treesize:5 [2021-06-17 00:44:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 17 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:44:20,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515342458] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:20,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:44:20,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 38] total 65 [2021-06-17 00:44:20,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359724398] [2021-06-17 00:44:20,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-06-17 00:44:20,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:44:20,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-06-17 00:44:20,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=399, Invalid=3891, Unknown=0, NotChecked=0, Total=4290 [2021-06-17 00:44:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:20,710 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:44:20,710 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 66 states, 66 states have (on average 1.7272727272727273) internal successors, (114), 65 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 00:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-17 00:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 00:44:20,711 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:44:23,820 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-06-17 00:44:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:44:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:44:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:44:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-17 00:44:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 00:44:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-17 00:44:25,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:25,055 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 00:44:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 00:44:25,056 INFO L82 PathProgramCache]: Analyzing trace with hash 376606334, now seen corresponding path program 6 times [2021-06-17 00:44:25,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 00:44:25,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514374855] [2021-06-17 00:44:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 00:44:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 00:44:26,091 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-17 00:44:26,092 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 00:44:26,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514374855] [2021-06-17 00:44:26,092 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514374855] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:44:26,092 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106759176] [2021-06-17 00:44:26,092 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:44:26,137 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-06-17 00:44:26,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 00:44:26,139 WARN L261 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 84 conjunts are in the unsatisfiable core [2021-06-17 00:44:26,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 00:44:37,809 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-06-17 00:44:56,042 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 84 [2021-06-17 00:44:56,181 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:56,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 236 [2021-06-17 00:44:56,200 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:56,302 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 00:44:56,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 236 [2021-06-17 00:44:56,339 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:56,979 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 200 [2021-06-17 00:44:56,980 INFO L628 ElimStorePlain]: treesize reduction 591, result has 59.2 percent of original size [2021-06-17 00:44:57,276 INFO L550 ElimStorePlain]: Start of recursive call 1: 13 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 00:44:57,276 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 14 variables, input treesize:239, output treesize:232 [2021-06-17 00:44:58,091 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2021-06-17 00:44:58,666 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2021-06-17 00:44:59,305 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2021-06-17 00:44:59,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,699 INFO L354 Elim1Store]: treesize reduction 114, result has 44.4 percent of original size [2021-06-17 00:44:59,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 90 treesize of output 118 [2021-06-17 00:44:59,735 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:59,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,900 INFO L354 Elim1Store]: treesize reduction 68, result has 53.7 percent of original size [2021-06-17 00:44:59,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 42 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 13 case distinctions, treesize of input 90 treesize of output 106 [2021-06-17 00:44:59,916 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 00:44:59,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:44:59,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,006 INFO L354 Elim1Store]: treesize reduction 122, result has 0.8 percent of original size [2021-06-17 00:45:00,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 34 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 11 case distinctions, treesize of input 90 treesize of output 1 [2021-06-17 00:45:00,007 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 00:45:00,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,106 INFO L354 Elim1Store]: treesize reduction 104, result has 6.3 percent of original size [2021-06-17 00:45:00,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 26 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 31 [2021-06-17 00:45:00,108 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 00:45:00,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,201 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-06-17 00:45:00,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 40 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 1 [2021-06-17 00:45:00,202 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 00:45:00,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 00:45:00,237 INFO L354 Elim1Store]: treesize reduction 158, result has 0.6 percent of original size [2021-06-17 00:45:00,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 31 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 90 treesize of output 1 [2021-06-17 00:45:00,243 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 00:45:00,330 INFO L628 ElimStorePlain]: treesize reduction 50, result has 58.7 percent of original size [2021-06-17 00:45:00,335 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-06-17 00:45:00,335 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:579, output treesize:52 [2021-06-17 00:45:00,511 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 46 proven. 153 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 00:45:00,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106759176] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 00:45:00,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 00:45:00,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 45] total 81 [2021-06-17 00:45:00,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634305191] [2021-06-17 00:45:00,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-06-17 00:45:00,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 00:45:00,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-06-17 00:45:00,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=6225, Unknown=3, NotChecked=0, Total=6642 [2021-06-17 00:45:00,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:45:00,514 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 00:45:00,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 1.6585365853658536) internal successors, (136), 81 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 00:45:00,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:45:00,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 00:45:00,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 00:45:00,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 00:45:00,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-06-17 00:45:00,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 00:45:00,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-17 00:45:00,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 00:45:25,595 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 49 [2021-06-17 00:45:37,794 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 106 DAG size of output: 54 [2021-06-17 00:45:52,640 WARN L205 SmtUtils]: Spent 5.80 s on a formula simplification. DAG size of input: 116 DAG size of output: 58 [2021-06-17 00:46:03,659 WARN L205 SmtUtils]: Spent 9.10 s on a formula simplification. DAG size of input: 130 DAG size of output: 68 [2021-06-17 00:46:38,592 WARN L205 SmtUtils]: Spent 29.01 s on a formula simplification. DAG size of input: 153 DAG size of output: 62 [2021-06-17 00:46:48,320 WARN L205 SmtUtils]: Spent 9.36 s on a formula simplification. DAG size of input: 124 DAG size of output: 61 [2021-06-17 00:47:18,506 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-06-17 00:47:18,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 00:47:18,708 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.search(SleepSetNewStateReduction.java:159) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetNewStateReduction.(SleepSetNewStateReduction.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 51 more [2021-06-17 00:47:18,711 INFO L168 Benchmark]: Toolchain (without parser) took 192642.41 ms. Allocated memory was 204.5 MB in the beginning and 425.7 MB in the end (delta: 221.2 MB). Free memory was 184.7 MB in the beginning and 298.2 MB in the end (delta: -113.5 MB). Peak memory consumption was 109.5 MB. Max. memory is 8.0 GB. [2021-06-17 00:47:18,711 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 204.5 MB. Free memory is still 185.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 00:47:18,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.10 ms. Allocated memory is still 204.5 MB. Free memory was 184.6 MB in the beginning and 183.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 00:47:18,712 INFO L168 Benchmark]: Boogie Preprocessor took 14.08 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 182.2 MB in the end (delta: 892.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 00:47:18,712 INFO L168 Benchmark]: RCFGBuilder took 269.73 ms. Allocated memory is still 204.5 MB. Free memory was 182.1 MB in the beginning and 169.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-17 00:47:18,712 INFO L168 Benchmark]: TraceAbstraction took 192332.06 ms. Allocated memory was 204.5 MB in the beginning and 425.7 MB in the end (delta: 221.2 MB). Free memory was 168.7 MB in the beginning and 298.2 MB in the end (delta: -129.5 MB). Peak memory consumption was 92.7 MB. Max. memory is 8.0 GB. [2021-06-17 00:47:18,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 204.5 MB. Free memory is still 185.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.10 ms. Allocated memory is still 204.5 MB. Free memory was 184.6 MB in the beginning and 183.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.08 ms. Allocated memory is still 204.5 MB. Free memory was 183.1 MB in the beginning and 182.2 MB in the end (delta: 892.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 269.73 ms. Allocated memory is still 204.5 MB. Free memory was 182.1 MB in the beginning and 169.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 192332.06 ms. Allocated memory was 204.5 MB in the beginning and 425.7 MB in the end (delta: 221.2 MB). Free memory was 168.7 MB in the beginning and 298.2 MB in the end (delta: -129.5 MB). Peak memory consumption was 92.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...